#include <benchmark/benchmark.h>

const size_t N = 5'000;
int matriz[N][N];

void f1(benchmark::State& state)
{
	for (auto _ : state) 
	{
		for (size_t i = 0; i < N; ++i)
			for (size_t j = 0; j < N; ++j)
				matriz[i][j] = 0;
	}
}

void f2(benchmark::State& state)
{
	for (auto _ : state) 
	{
		for (size_t i = 0; i < N; ++i)
			for (size_t j = 0; j < N; ++j)
				matriz[j][i] = 0;
	}
}

BENCHMARK(f1);
BENCHMARK(f2);

BENCHMARK_MAIN();